Roasted Chicken with breasts

1 roasting chicken , 6 pound chicken 1 (8 ounce) bottle balsamic vinaigrette dressing 1 lb carrot , cut into chunks 4 stalks celery , cut into chunks 1[...]

1/2 cup balsamic vinegar (Good quality) 3 tablespoons Dijon mustard 3 tablespoons fresh lemon juice 2 choped garlic cloves 3 tablespoons olive oil 2[...]

3 quarts root vegetables, cut in 1-inch chunks, such as parsnips, turnips, new potatoes, onions and baby carrots 2 tablespoons balsamic vinegar 3 teaspoons[...]